PSU-U-24V/AC-4A/5/FTA-TR-MC
PSAC 0424
v.1.0
AC/AC power supply unit
Edition: 1 from 24
th
October 2008
Supercedes edition: ----------
09062009
2
CONTENTS:
1. Technical description.
1.1. General description
1.2. Block diagram
1.3. Description of elements and power supply connectors
1.4. Technical parameters
2. Installation.
2.1. Requirements
2.2. Installation procedure
3. Monitoring of the power supply operation.
3.1. Optical signaling
3.2. Technical output
4. Service and operation.
4.1. Overload or short-circuit protection
4.2 Maintenance
1. Technical description.
1.1. General description.
AC/AC PSAC 0424 power supply is used for supplying devices which require stabilized voltage of 24V
(U1= 24,0VAC/ U2= 27,0VAC) and of total current efficiency equal to 4A@24Vac (100VA).
The basic features of the power supply include:
• 5 outputs protected independently by fuses, any failure (short-circuit) in a circuit of any output causes
burning of a fuse-element and isolation of circuit from DC supply.
• regulation of output voltage: in case of installation, when significant voltage drops at the resistance of
power cables of receivers occur, it is possible to change a voltage value by U1/U2 jumper, independently
for every AUX output.
• optical signaling of operation informing about the state of any output and/or any failure.
• AW technical output informing about any output failure (activation of SCP) used for remote control of
operation
• protections: short-circuit (SCP), overload (OLP), overheat (OHP),
• Metal casing (RAL 9003 color) with signaling panel and microswitch (TAMPER) indicating door (front)
opening
Information about additional equipment for PSAC 0424 power-supply:
- AC/DC power supply in the ABS casing, MSC 1512 (MSC 12V/1,5A or 24V/1A power supply, switched voltage)
allows building 24Vac and 12Vdc/24 supply system.
Information about types:
Model Description
PSAC 0424
PSU-U-24V/AC-4A/5/FTA-TR-MC
AC/AC 24V AC power-supply unit, with the total current capacity 4A@24V
and switched output voltage 24,0V/27,0V.
Equipped with the indication
panel of AUX outputs status. Metal casing IP20 with an indication
panel equipped with the TAMPER microswitch.
PSAC 0624
PSU-U-24V/AC-6A/10/FTA-TR-MC
AC/AC 24V AC power-supply unit, with the total current capacity 6A@24V
and switched output voltage 24,0V/27,0V.
Equipped with the indication
panel of AUX outputs status. Metal casing IP20 with an indication
panel equipped with the TAMPER microswitch.
PSACH 0424
PSU-U-24V/AC-4A/5/FTA-TR-HC
AC/AC 24V AC power-supply unit, with the total current capacity 4A@24V
and switched output voltage 24,0V/27,0V.
Equipped with the indication
panel of AUX outputs status.
ABS IP65
casing with equipped
with the TAMPER microswitch.
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1.2. Block diagram (fig.1).
Fig.1. The block diagram of the power supply.
1.3. Description of elements and power supply connectors (tab.1, tab.2, fig.2).
Table 1.
Element no.
[Fig. 2]
Description
[1] Isolating transformer
[2] LB5 fuse block (tab 2)
[3]
TAMPER, contact of antisabotage protection (NC)
[4]
F switch in the power supply circuit (230V/AC)
[5]
L-N
power-supply connector
230V/AC,
PE protection connector
Tab.1. The elements of the power-supply unit.
Table 2.
[2] Description of LB5 elements
COM-U1-U2 AC supply input (transformer isolation required)
AUX1÷AUX5
COM
AC supply output, U1 or U2
Common contact (COM)
AW
GND
failure technical output
„ground” contact of AW output
L1÷L5 LED diodes (green) indicating L1=AUX1 output status etc.
L AW LED diode (red) indicating failure of min. one output (duse failure)
F1÷F5 Fuses in AUX circuits, F1=AUX1 etc.
U1-U2
Jumper of AUX output voltage change (for etery output separately):
U2 dip switch installed, output voltage AUXx= U2
U1 dip switch installed, output voltage AUXx= U1
Tab.2. Contacts and elements of
LB5.
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Fig.2. The view of the power supply.
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1.4. Technical parameters:
- electrical parameters (tab.3)
- mechanical parameters (tab.4)
- operation safety (tab.5)
- operation parameters (tab.6)
E
lectrical parameters
(tab. 3).
Supply voltage 230V/AC (-15%/+10%)
Supply frequency 50Hz (47÷53Hz)
PSU power P 100VA max.
Current consumption 0,5 A max. (5,0 A „cold boot”)
Output voltage
U1 : 23,0V
÷28,0V AC (100% load ÷ 0% load)
U2 : 25,5V
÷31,5 AC (100% load ÷ 0% load)
Voltage setting range
U1/U2 (abrupt change)
Voltage adjustment range
no adjustment
Output current 5x 0,8A for F1A fuses
Σ4,0A@24Vacmax. or 3,7A@27Vac max.
2A max. for single AUX (F2A)
SCP short-circuit protection
5x F1,0A fuse or
3x F1,5A fuse (fuse replacement from the set, only three
AUX outputs used)
- fuse failure – fuse element replacement required
OLP overload protection
5x F1,0A or 3x F1,5A –AC 24V circuit
1x T1,0A –AC 230V circuit
Technical outputs:
-
AW LB5
output indicating the failure of one
AUX output
(fuse failure)
- TAMPER output indicating opening of the
power-supply casing
-
OC type, 50mA max.
normal status
: level hi-Z,
failure status
: level L (0V)
- microswitch, NC contacts (close casing),
0,5A@50V DC (max.)
Optical indication
:
LED L1
÷L5 diodes (green)
LED LAW diodes (red)
- outputs statusAUX1…AUX5
Normal status
= illumination
Failure status
=
no illumination
- Failure indication of min. one AUX output
Normal status
=
no illumination
Failure status
= illumination
F fuse
F1÷F5 fuse
T 1A/250V
F1A/ 250V
or F1,5A/250V
Mechanical parameters (tab.4).
Casing dimensions 215 x 170 x 63 (WxHxD) [mm] (+/- 2)
Fixation 185 x 122 x Φ 6 x4pcs (WxH)
Net/gross weight 2,1/2,2 kg
Casing color RAL 9003
Closing Cheese screw x 1 (at the fornt)
Connectors Power-supply: Φ0,63-2,50 (AWG 22-10)
Outputs: Ф0,41÷1,63 (AWG 26-14)
TAMPER output: wires, 30cm
Notes The casing is distant from the assembly surface so that cables can be installed
Operation safety (tab.5).
Protection class PN-EN 60950-1:2004 I (first)
Protection class PN-EN 60529: 2002 (U) IP20
Electrical strength of insulation:
- between input (network) circuit and output circuits of power-supply
(I/P-O/P)
- between input circuit and PE protection circuit (I/P-FG)
- between output circuit and PE protection circuit (O/P-FG)
3000 V/AC min.
1500 V/AC min.
500 V/AC min.
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Insulation resistance:
- between input circuit and output or protection circuit
100 MΩ, 500V/DC
Operation parameters (tab.6)
Operation temperature -10ºC...+40ºC
Storage temperature +5ºC...+40ºC
Relative humidity 30%...90%, without condensation
Vibrations during operation
Unacceptable
Impulse waves during operation
Unacceptable
Direct isolation
Unacceptable
Vibrations and impulse waves during transport According to PN-83/T-42106
2. Installation.
2.1 Requirements.
The buffer power-supply shall be mounted by the qualified installer having appropriate (required and
necessary for a given country) permissions and qualifications for connecting (operating) 230V/AC installations and
low-voltage installations. The device shall be mounted in closed rooms, according to the environment class II, of
the normal air humidity (RH=90% max. without condensation) and the temperature within the range from -10°C
to +40°C. The power-supply shall operate in a vertical position so that free and convectional air flow through
ventilating holes of the casing is guaranteed.
Before installation is started, the balance of the power-supply load shall be performed. During the normal
operation, the sum of currents collected by receivers shall not exceed I=4,0A@24Vac.
It is acceptable to
change values of fuses to other than original, if not all outputs of power supply of LB5 block are used and
S=100VA max
is not exceeded. (
Σ4,0A@24Vacmax and current of single 2A/AUX output).
As the power-supply is designed for a continuous operation and is not equipped with a power-switch,
therefore an appropriate overload protection in the power supply circuit shall be guaranteed. Moreover, the user
shall be informed about the method of isolation of the power supply from the power voltage (usually through
assignment and marking of an appropriate fuse in the fuse-box). The electrical system shall be made in accordance
with valid standards and regulations.
2.2 Installation procedure.
1. Before installation is started, the voltage in the 230V power-supply circuit shall be isolated.
2. The power-supply shall be mounted in a selected location and connection cords shall be lead.
3. The power cables (~230Vac) shall be connected to L-N terminals of the power supply. The earth conductor
shall be connected to the terminal marked by the earth symbol . The connection shall be made by means of a
three-core cable (with a yellow and green PE protection wire). The power cables shall be lead to appropriate
terminals of the connection board through bushing.
The circuit of the shock protection shall be performed with a particular care, i.e. the yellow
and green protection wire of the power cable shall be connected from one side to the
terminal marked by the symbol of in the casing of the power-supply. Operation of the
power-supply without the properly made and fully operational circuit of the shock
protection is
UNACCEPTABLE!
It can result in failure of devices and electric shock.
4. Connect the conductors of consumers to the +AU, -AUX terminals of the terminal box on the power-supply unit.
5. If necessary, connect the conductors from the equipment to the technical outputs:
- AW LB5 signalization of fuse failure (LB5 block output)
- TAMPER signalization of power-supply unit opening
6. As there are significant voltage drops at the resistance of power cables of receivers during installation, it is possible to adjust
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a voltage value by (abrupt) correction of voltage value by
U1/U2 dip switches. Output voltage value change is
independent for every AUX output.
7. Activate the ~230V/AC supply
8. Check optical indication of power supply operation: LED L1-L5 (green) diodes shall light continuously.
9. Once the tests and control operation have been completed, lock the casing.
3. Monitoring of the power-supply operation.
The power-supply is equipped with the optical signaling of operation modes. Voltage at the outputs of the
power supply is indicated by lighting of green LEDs at the front panel of the device. A failure is indicated by the red
LED [!] AW. The power supply mode can be remotely controlled by AW technical output.
3.1 Optical signaling (fig.4.)
• Green LEDs 1….5 indicate the power-supply mode at AUX1…..AUX5 outputs.
If power supply is lost at an output (fuse blow), a correspondent LED stops lighting (L1 for AUX1, L2
for AUX2, etc.).
• The red LED [!] AW indicates any failure of at least one AUX output (the number of the output is
indicated by a green LED).
Fig.3. The view of
PSAC 0424
panel.
3.2 Technical output:
The power supply is equipped with indication outputs which enable passing information about failure or
sabotage.
• AW output indicates fuse failure (LB5 block outputs).
The AW technical output is isolated from frame (GND) during proper operation of LB5, and if any fuse is
damaged, the output is shorted to frame. Such state is indicated by a red LED on LB5 block.
• TAMPER: output indicates opening the power-supply unit, output as volt-free contacts which
indicate power-supply unit door status, unit closed: NC, unit opened: NO.
4. Service and operation.
4.1 Procedure in case of short-circuit (activation of SCP) of the power supply output.
The AUX1÷ AUX5 outputs have short-circuit protection through application of fuses (fuse-elements).
If a failure occurs, the fuse shall be replaced (the same as the original).
It is acceptable to change values of fuses to other than original, if not all outputs of power supply of
LB5 block are used and S= 100VA max. is not exceeded. (Σ4,0A@24Vacmax and current of single
2A/AUX output).
If the power-supply is overloaded by the current exceeding Σ4,0A@24Vac (110% ÷ 150% P), F fuse in
the 230Vac is damaged and/or F1-F5 fuses. In case of the failure the fuse shall be replaced (the same as original).
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4.2 Maintenance.
All maintenance operations can be performed after the power supply is disconnected from the power
network. As for the power supply, it is not necessary to perform any special maintenance operations, but if the
power supply interior is significantly dusty, it shall be vacuum-cleaned by compressed air. In case of fuse
replacement, the spare parts shall be the same as original ones.
WEEE MARK
The waste electric and electronic equipment shall not be discarded together with
common home waste materials. According to the WEEE directive valid in EU, particular
methods of utilization shall be applied for the waste electric and electronic equipment.
WARRANTY
24 months since the sale date, 36 months since the production date.
THE WARRANTY IS VALID ONLY after presenting the invoice of the sale to which the claim
refers.
Pulsar K.Bogusz Sp.J.
Siedlec 150,
32-744 Łapczyca, Poland
Tel. (+48) 14-610-19-40, Fax. (+48) 14-610-19-50
e-mail: biuro@pulsar.pl, sale[email protected]
http:// www.pulsar.pl
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